package com.atguigu.config;

import com.atguigu.bean.Yellow;
import com.mchange.v2.c3p0.ComboPooledDataSource;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.EmbeddedValueResolverAware;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
import org.springframework.context.annotation.PropertySource;
import org.springframework.util.StringValueResolver;

import javax.sql.CommonDataSource;
import javax.sql.DataSource;
import java.beans.PropertyVetoException;

/**
 * Profile
 *      spring 为我们提供的可以根据当前环境，动态的激活和切换一系列组件的功能
 * 开发环境、测试环境、开发环境（比如数据源）
 * @Profile:指定组件在哪个环境的情况下才能被注册到容器中，不指定，任何环境下都能注册这个组件
 *
 * 1).加了环境标识的bean，只有这个环境激活的时候才能注册到容器中.默认是default环境；@Profile("default")
 * 2).写在配置类上，只有是指定的环境的时候，整个配置类里面的所有配置才能开始生效
 * 3).没有标注环境标识的类，在任何环境下都是加载
 */
//@Profile("test")
@PropertySource("classpath:/dbconfig.properties")
@Configuration
public class MainConfigOfProfile implements EmbeddedValueResolverAware {

    @Value("${db.user}")
    private String user;

    private StringValueResolver valueResolver;

    private String driverClass;

    //@Profile("test")
    @Bean
    public Yellow yellow(){
        return new Yellow();
    }

    @Profile("test")
    @Bean("testSataSource")
    public DataSource dataSourceTest(@Value("${db.password}") String pwd) throws PropertyVetoException {
        ComboPooledDataSource dataSource = new ComboPooledDataSource();
        dataSource.setUser(user);
        dataSource.setPassword(pwd);
        dataSource.setJdbcUrl("jdbc:mysql://localhost:3306/demo");
        dataSource.setDriverClass(driverClass);
        return dataSource;
    }

    @Profile("dev")
    @Bean("devSataSource")
    public DataSource dataSourceDev(@Value("${db.password}") String pwd) throws PropertyVetoException {
        ComboPooledDataSource dataSource = new ComboPooledDataSource();
        dataSource.setUser(user);
        dataSource.setPassword(pwd);
        dataSource.setJdbcUrl("jdbc:mysql://localhost:3306/dev");
        dataSource.setDriverClass(driverClass);
        return dataSource;
    }

    @Profile("prod")
    @Bean("prodSataSource")
    public DataSource dataSourceProd(@Value("${db.password}") String pwd) throws PropertyVetoException {
        ComboPooledDataSource dataSource = new ComboPooledDataSource();
        dataSource.setUser(user);
        dataSource.setPassword(pwd);
        dataSource.setJdbcUrl("jdbc:mysql://localhost:3306/prod");
        dataSource.setDriverClass(driverClass);
        return dataSource;
    }

    public void setEmbeddedValueResolver(StringValueResolver stringValueResolver) {
        this.valueResolver = stringValueResolver;
        driverClass = valueResolver.resolveStringValue("${db.driverClass}");
    }
}
